package cn.yyh.commons.config;

import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector;
import com.baomidou.mybatisplus.extension.plugins.OptimisticLockerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author 杨永航
 * @version 1.0
 * @Title: MyConfig
 * @Package: com.atguigu.eduservice.config
 * @date 2021/6/16
 */
@Configuration
@MapperScan("com.atguigu.eduservice.mapper")
public class MyConfig {

    /**
     * MyBatis-plus逻辑删除插件
     */
    @Bean
    public ISqlInjector sqlInjector() {
        return new LogicSqlInjector();
    }

    @Bean
    public PaginationInterceptor paginationInterceptor() {
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
        // paginationInterceptor.setOverflow(false);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 开启 count 的 join 优化,只针对部分 left join
        return new PaginationInterceptor();
    }

    /**
     * MyBatis-plus乐观锁插件
     *
     * @version: 1.0
     * @return: OptimisticLockerInterceptor
     * @author: 杨永航
     * @date: 2021/6/13
     */
    @Bean
    public OptimisticLockerInterceptor optimisticLockerInterceptor() {
        return new OptimisticLockerInterceptor();
    }

}
